Как правильно задать вопрос от предложения She was watching TV when he came home? Я написала Is she was watching ... ? и от предложения She has traveled. Я написала Is she has traveled? Правильно или нет?

She was watching TV when he came home?

Was she watching TV when he came home?

What was she doing when he came home?

She was watching TV when he came home, wasn't she?

She has travelled.

Has she travelled?

Where has she travelled?

She has travelled, hasn't she?